Use the Following Bar Graph to Find the Average Number

question 31

Short Answer

Use the following bar graph to find the average number of therms of natural gas used per month.

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Definitions:

Silica Tetrahedron

A structural unit of silicon ion surrounded by four oxygen ions, forming the basic building block of silicate minerals.

Silicon

The fourteenth element in the Periodic Table, having the atomic symbol Si.

Silica Tetrahedra

The basic structural unit of silicate minerals, consisting of four oxygen atoms surrounding a single silicon atom.

Silicate Minerals

A group of minerals that contain silicon and oxygen, usually with other metals, forming the largest and most important class of minerals on Earth.